<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>2_元素阴影</title>
        <style>
            div{
                width: 300px;
                height: 100px;
                background-color: #62b5ec;
                border-radius: 50px;
                /*元素阴影:X轴偏移量 Y轴偏移量 羽化值 阴影扩展范围 阴影颜色*/
                box-shadow: 5px 5px 5px 5px gray;
            }
        </style>
    </head>
    <body>
        <div></div>
    </body>
</html>